I haven't figured out what to say yet. :)

The short version is that I'm not sure we want to make counterclaims at the top of Alexander's blog posts. I mostly just wish Alexander was more consistently constructive in his criticism, like many of our other critics are. I think I'm far from alone in the impression that his criticisms are an uneven mix of kinda fair criticisms, deliberate straw men ("the intelligence explosion hypothesis is a tautology"), largely irrelevant character assassination (digging up embarrassing things Eliezer wrote when he was 16), and more. But I was resisting saying even this much, because I worry about putting Alexander in a position where he again feels he's being misrepresented and needs to defend himself.

Well, I guess let's see what happens. But I can't promise I'll think it's wise for me to reply further.